Storm window casing



1966 J. A. WAHLFELD ETAL 3,280,389

STORM WINDOW GAS I NG Filed April 9, 1962 5 Sheets-Sheet 1 INVENTORS: JAMES A. WAHLFELD ROBERT C. L. JACOBS Oct. 25, 1966 J. A. WAHLFELD ETAL 3,280,889

STORM WINDOW CASING 5 Sheets-Sheet 2 Filed April 9, 1962 JAMES A. WAHLFELD Oct. 25, 1966 .1. A. WAHLFELD ETAL STORM WINDOW CASING 5 Sheets-Sheet 5 Filed April 9, 1962 INVENTORS: JAMES A. WAHLFELD 1966 J. A. WAHLFELD ETAL 3,

STORM WINDOW CASING 5 Sheets-Sheet 4 Filed April 9, 1962 INVENTORS: JAMES A. WAHLFELD JACOBS ROBERT C.

1966 J. A. WAHLFELD ETAL. 3,280,889

STORM WINDOW CASING Filed April 9, 1962 5 Sheets-Sheet 5 INVENTORSZ JAMES A. WAHLFELD United States Patent M 3,280,889 STORM WINDOW CASING James A. Wahlfeld, Peoria, and Robert C. L. Jacobs, East Peoria, 111., assignors to Wahlfeld Mfg. Co., Peoria, 11]., a corporation of Illinois Filed Apr. 9, 1962. Ser. No. 186,250 10 Claims. (Cl. 16040) This invention relates in general to storm window construction and more particularly, to an improved combination storm window and screen sash casing as an integral part of a prime window unit permitting self storing of sliding storm sashes which are firmly and tightly sealed when in place but which may be readily removed for cleaning or repairing.

The primary object of this invention is to provide structural improvements designed to prevent thermo transfer between a storm and the primary sashes of a window structure.

A specific object of this invention is to provide a window casing structure which is extremely light in weight, is strong and rigid in all its parts, with the window frame and sash frames being formed from a non-corrosive metal, such as aluminum.

A still further object of this invention is to provide a window casing structure in a preformed condition for permanent installation incident to erection of buildings which permits a completely sliding prime and storm sashes, and with a screen sash for use during the summer months permanently positioned below the upper storm sash with a lower storm sash being disposed in slidable relationship behind the screen sash.

Still another object of this invention is to provide an improved storm window casing preformed entirely from metal which provides a sliding guide means for the sashes and presents an angular portion to function as a sill member.

Another object of this invention is to provide a preformed contoured metallic storm window casing designed to receive an extension sill if desired, to eliminate the cost of forming a special design for the added sill.

A still further object of this invention is to provide an improved contoured metallic storm casing providing a thermal barrier and seal between the metallic and wood frame members.

A further object of this invention is to provide a contoured metallic storm window casing which is simple in design and easily positioned to the window opening and receives a prefermed snap-in cover member which conceals all casing fastener members.

The features of the invention which are beliveed to be novel are set forth with particularity in the appended claims. The invention, together with further objects and advantages thereof, may best be understood by reference to the following description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front elevation view of a window casing of this invention;

FIG. 2 is a fragmentary sectional view in front perspective taken along the line 2-2 of FIG. 1;

FIG. 3 is a fragmentary sectional view in front perspective taken along the line 3-3 of FIG. 1;

FIG. 3a is an enlarged fragmentary partially sectioned view illustrating the securement of a sealing member within the contoured casing member;

FIG. 4 is a fragmentary sectional view in front perspective taken along the line 44 of FIG. 1;

FIG. 4a is a fragmentary sectioned view illustrating the securement of a snap-in decorative trim member;

FIG. 5 is a fragmentary sectional view in front perspective illustrating an extension member secured to the aluminum sill of the prime window;

3,280,889 Patented Oct. 25, 1966 FIG. 5a is an enlarged fragmentary sectional view illustrating the pivotal interconnection of the sill extension illustarted in FIG. 5;

FIG. 6 is a front elevational view of a multiple window unit storm and screen casing of this invention;

FIG. 7 is a fragmentary sectional view in front perspective taken along the line 77 of FIG. 6;

FIG. 8 is a fragmentary sectional view taken along the line 88 of FIG. 6;

FIG. 9 is a fragmentary sectional view taken in front elevation along the line 9-9 of FIG. 6;

FIG. 10 is a fragmentary sectional view in front elevation taken along the line 10-10 of FIG. 6;

FIG. 11 is a fragmentary sectional view in front elevation taken along the line 1111 of FIG. 6;

FIG. 12 is a fragmentary sectional view in front elevation illustrating an alternate window construction; and

FIG. 13 is a fragmentary partially sectioned exploded view illustrating the securement of the members of the storm casing of this invention to the aluminum sill of the prime window unit.

The invention comprises briefly, by way of generalization, for a better understanding of the detailed description to follow, a storm window casing and frames designed and constructed for mounting to wood jambs of a building completely eliminating the necessity of wood casings, blind stops and drips, as normally found on conventional wood window frames.

The invention further contemplates a preformed contoured metallic casing for permanent installation incident to the erection of new buildings or remodeling of existing buildings which permits a completely sliding, self sealing storm sash and a screen sash within the contours of the casing.

Another salient feature of this invention is the provision of a sliding storm sash of the self-storing type, in conjunction with a screen sash whereby the screen sash is maintained in a vertical position below a storm sash with a secondary storm sash slidably received behind the screen sash and may be readily raised or lowered depending upon whether additional air is to be required or to be sealed from entrance to the room.

The entire contoured metallic casing of this invention is secured to the existing wooden frame and the outwardly facing marginal edges of the metallic casing are designed to receive a snap-in decorative cover member, which completely places the casing fastening elements in a concealed or hidden position.

Referring now to the drawings, and more specifically to FIGS. 1, 2, 3 and 4, an embodiment of the storm window casing and frames of this invention, for securing to wood jamb members of the prime window, is illustrated. The combination storm window and screen casing, indicated by the numeral 10, is formed by side member 12, head member 14 and sill member 16. The side members 12 are of identical cross sectional configuration and like the head member 14 and sill member 16 are preferably extruded from a lightweight material, such as, aluminum.

Referring now to FIG. 2, the conventional window frame is shown in cross section with a head jamb 18 and framing members 20 supporting exterior sheathing 22, in terior wall covering 24 and trim molding 26. A conventional window sash 28 and pane 30 is shown in the closed position against the underside of the head jamb 18. The construction just disclosed above is of conventional configuration and has no part of the combination storm and screen sash casing of this invention.

The combination storm window and screen sash casing of this invention is mounted adjacent the conventional window construction with the head 14 secured adjacent the jamb 18 (FIG. 2). In addition to the recesses adapted to guide and seal the storm and screen sash, which are to be described in detail, the casing has an elongated peripheral flange portion 32 which extends parallel with and partially covers the exterior sheathing 22 adjacent the casing side members 12, head 14 and sill 16.

The head is located in position by tabs 34, integrally formed in the flange 32, against the 'head jamb 18, as a preliminary positioning means, and is subsequently fixedly secured by means of nails 33 passing through preformed apertures 36 at spaced intervals in the flange 32. The head 14 provides a flat portion 38 extending outwardly from the flange 32, a downwardly extended front wall 39 on the leading edge thereof and an inwardly facing channel portion 40 formed on the lower edge of wall 39. A storm window sash 42 having a glass 44 mounted therein is detachably hooked or secured in sealing relationship with the channel portion 40.

The storm window sash 42 provides a contoured top rail 46 across the upper edge which is matingly received in the channel 40. By providing the top rail 46 on the storm sash, additional hangers are completely eliminated and the positive positioning of the upper sash forms a continuous, tight weatherproof seal (FIGS. 2 and 4a).

It is to be readily understood that the storm sash 42 may be easily installed and removed from the frame entirely from inside the building. The hook contour of the top rail 46 is engaged on the inner facing channel portion and the bottom portion is swung outwardly. The sides of the sash clear the window slides and engage the casing side members 12.

Referring now more specifically to FIG. 3, the contoured configuration of the side members 12 of the casing 10 is illustrated in conjunction with the conventional window construction and the storm and screen sashes.

The conventional Window construction is illustrated consisting of side jamb 48, framing members 50 supporting outer sheathing 22, interior wall covering 24 (not shown) and a trim molding 52. Conventional primary upper and lower window sashes 28 and glass 30 are illustrated in the closed position with a suitable check rail Weatherstripping member 54 disposed between the adjacent mating check rail members.

The side member 12, as previously mentioned, is a contoured extrusion designed to receive a suitable weatherstripping 57, as best seen in FIG. 3a to seal the outerface of a storm sash and a screen sash within the recesses formed therein. The side member 12 provides essentially two spaced guideways or channels, an outer channel '56 and an inner channel 58 for receipt of the storm sashes with the bottom of the outer guideway 56 terminating marginally at the outer edge of the inner channel 58. The upper storm sash 42 is secured in position as described above with the outer peripheral surface of sash 42 coming into sealing contact with the Weatherstripping 57 as just described. A bottom rail 59 is angularly formed across the lower outer surface of the sash 42 to serve as a stop member and sealing member for the upper portion of a screen sash 60, which will now be described.

The screen'sash 60, having a screen 62 secured therein, is also disposed in the outer channel 56 directly below the upper window sash 42. The upper outer surface of the screen sash 60 engages the inner surface of the bottom rail 59 in sealing relationship. The outer peripheral surface of the screen sash seals against the Weatherstripping 57 in the sides of the channel 56 in a similar manner as the sash 42 with the channel 56.

A lower storm sash 64, having a glass 66, is slidably secured in sealing relationship with the inner channel 58 for movement in a vertical plane parallel to the upper storm sash 42 and screen sash 60. The lower storm sash 64 is free to be tilted in the vertical plane of movement, to facilitate installation with a suitable conventional resilient retainer (not shown) spaced and disposed in the side marginal edges of the sash to maintain the sash in the desired position. The outer peripheral surface of the vertical sides of the lower sash 64 is provided with a suitable sealing member to seal against the inner surfaces of .the storm sash 42 and screen sash 60. The upper portion of sash 64, when in the closed position, has a suitable Weatherstrip member 68 mounted on the outer surface for sealing engagement with the inner lower surface of the upper sash 42.

The side members 12 provide an angularly disposed portion which forms the flange 32 as previously mentioned, which extends parallel with and partially covers the outer sheathing and receives the securing nails for fixedly securing the entire unit in position. A cover retaining web 70 extends outwardly from the surface of the flange portion 32 to releasably retain one edge of a snap-in cover which will be fully explained later.

Referring now more specifically to FIG. 4, the sill member 16 and the side member 12 are illustrated in secured relationship with a conventional window construction. The conventional window construction provides a framing member 72 supporting the outer sheathing 22, inner wall covering 20, inner trim molding 74 and inner finishing sill 76.

The sill member 16 provides a large planar surface 78 having depending L-shaped legs 80, at graduated height, secured or formed to the under surface thereof, which seat on the upper surface of the framing member 72, placing the planar surface 78 in a downwardly sloping plane. A flange portion 32 extends downwardly from the surface 78, parallel to the legs 80, and overlaps the outer sheathing 22. The sill member 16 is fixedly secured by nail members passing through the flange 32 and embedding the outer sheathing 22 and framing member 72 in similar manner as previously described for the head 14 and side members 12.

The extreme inner edge of the surface 78 provides an angularly formed bead 82 about which a Weatherstrip 84 is received for sealing engagement with the outer marginal edge of the finishing sill 76 and the lower under surface of the primary inner sash 28 when the sash is in the closed position. i

The outer edge of the planar surface 78 extends substantially outwardly past the vertical plane of the outer sheathing 22 and provides a downwardly extending forward Wall 86 with a channel 88 formed 0n the inner surface thereof. Although the channel 88 is of no functional value in the embodiment illustrated in FIGS. 1 to 4, the advantages and purpose of the channel 88 will be readily apparent as the description continues for alternate constructions to be explained.

Still referring to FIG. 4, a removable insert sill 90 is secured on the planar surfaces 78 in juxtaposition for sealing engagement with the under surface of the screen sash 60 and the under surface of storm sash 64. The insert sill 90 provides a stepped contoured configuration to provide a separate sealing surface for the screen and storm sashes with a bottom rail 92 on the storm sash providing ample space between the lower portion of the storm sash and the insert sill 90for insertion of a suitable adjustment and security lock.

Referring now to FIGS. 1 to 4a, the forward wall 39 of the head 14 is' provided with a decorative design as desired and illustrated in the drawings as a plurality of contiguous concaved recesses. As best seen in FIG. 4a, the upper and lower edge of the front wall 39 is provided, with opposing U-shaped channels 41 and 43 respectively, to retain a decorative rolled member 45 available in various colors. To provide an overall balanced outward appearance of the combination storm and screen casing, a snap-in cover 94 (FIG. 3), providing two angular leg portions in substantially L-shaped configuration has one edge received in the web 70 extending from the flange 32 with the other edge of the L-shaped member being received in the channel formed in the reverse side of member 12 adjacent the outer channel 56. The outer surface of the leg portion having the edge received in the channel of side member 12 is provided with the decorative design of a plurality of concave recesses of suitable color similar to the outer wall 39 of the head 14. It is to be understood that the snap-in cover 94 has sufficient flexibility to permit the edges to be forced into the receiving web and channel portions and be resiliently retained in sealing relationship with the mating edges thereof. The snap-in cover 94, as previously mentioned, is preferably formed from a lightweight metal such as aluminum and is of the identical design configuration as the other outwardly appearing surfaces of the window casing. It is also contemplated that the snap-in cover 94 may be of a contrasting color or design and readily formed from any of the well known plastics. It is to further noted, that when the snap-in cover is placed in position all of the fastening members securing the side members 12 are completely hidden from external observation and when the outer finishing material of the building is placed in position over the peripheral flange 32, the entire securing means of the window casing is completely hidden.

Referring now to FIGS. 5 and 5a, an extension sill, indicated generally by the numeral 96, is illustrated in relationship to the sill member 16, just described, wherein the final finishing layer of the building is of brick or stone, rather than the more common wood or aluminum siding. The bricks 98 are secured in the conventional manner adjacent the outer sheathing 22 and conventionally would require a stone cap of mortar or cement to be fabricated and secured on the uppermost brick to provide the additional sill. The sill extension 96 of this invention is a unitary extruded metallic member of similar formation as the sill 16. An upper planar surface 100 provides a downwardly extending forward wall 102 along its outer edge which is suitably designed to match the overall design of the other outwardly appearing casing surfaces. A shallow curved channel 104 is formed along the inner edge of the planar surface 100 about which the sill extension may be rotatably positioned to facilitate installation as will now be explained.

Referring more specifically to FIG. 5a, the channel 88 integral with the sill 16, receives a contoured locking member 106 in spaced relationship along the length of the channel 88 which retains the curved channel 104 of the extension sill 96 in rotating relationship with the channel 88. Disposed approximately in the center of the planar surface 100, .and angularly depending therefrom is an anchoring web 108 having an enlarged holding barb 110 on the extremity thereof. Having inserted the spaced sections of the locking member 106 with the curved channel 104 sandwiched between the channel 88 and the locking member 106, the sill extension 96 is rotated upwardly to a position as shown by the dash lines in the FIG. 5a, mortar is deposited on the upper surface of the top brick, the sill extension is swung downwardly and forced down to the desired angular slope. The anchoring web 108 and barb 110 will be deeply embedded and permanently fixed in the mortar. Once the mortar takes a set, the forcing action during positioning of the sill extension binds the curved channel 104 against the channel 88 and the locking member 106- to form a perfect sea-l. It is to be understood that the sill extension is pre-dimensioned to permit the forward outer wall 102 to extend downwardly over a portion of the outer marginal edge of the top brick. It is then readily apparent that when subsequent finishing or remodeling of the outer finish of a building takes place, the casing sill may be quickly and economically extended with the desired positive sealing relationship being maintained and the aesthetic value of the existing window casing is not altered.

Having described in detail the relationship, configuration, function and mating operation of the combination storm and screen sash casing of this invention for a single window construction, the following description of the alternate embodiments for various window constructions 6 will be greatly simplified and similar parts will be designated with like numerals.

Referring now to FIGS. 6, 7, 8, 9, 10 and 11, the combination storm and screen sash casing of this invention is illustrated as applied to a window arrangement having an enlarged fixed bay or picture window 112, illustrated as formed from a thermal-pane construction which is flanked on both sides by the conventional double hung window having primary vertical sliding sashes.

Referring more specifically to FIG. 7, the head 14 of the casing is secured across the entire 'width of the combined window construction in identical manner as previously described. Similarly, the side member 12 on the extreme outer edges of the Window construction and the sill 16 are formed, secured and function in identical manner as described for the above embodiment.

The primary variation of the casing illustrated in FIGS. 6 to 11, lies in the configuration of the intermediate sides, designated by numeral 114 between the double hung windows and the picture window .112. As best seen in FIGS. 8 and 9, the intermediate sides 1-14 provide a unitary substantially U-shaped contoured extruded member 116 having outwardly extending side walls 118. The walls 118 have a contoured configuration on their outer surfaces, equivalent to the contour of the previously described side members 12 to provide channels for guiding the storm and screen sash of the adjacent Windows. The lower surface or apex portion 120 of the U-shaped members 116 -is seated against the outer marginal edge of the window side jamb 48 and fixedly secured thereto by nails passing through and embedding in the side jamb 48.

A snap-in cover 1122, similar to the snap-in cover 94, except having a substantially flat configuration rather than an L-shaped configiration, is resiliently held in opposing securing channels adjacent the outer edges of the extending walls 118 of the U-shaped member 116. As previously mentioned for the snap-in cover 94, the outer surface of the cover may be decorated to suit and may be fabricated from either a lightweight metal such as aluminum, or plastic, or any suitable material having sufficient rigidity and resistance to the elements of the weather.

The U-shaped members 116 provide abutments 124 depending from the lower surface 120, spaced on both sides of the side jamb 48, for receipt and sealing engage ment with a weather strip member 126 disposed against the existing window construction.

Referring now to FIGS. 8, 9, 10 and 11, the picture window 112 is provided with an extruded side member, or stile 128, preferably formed from an aluminum alloy, to secure the side peripheral edges of the thermal-pane glass. The stile 128 seats against the surface of the side jamb 48 and provides on its outer edge a surface for sealing engagement with the Weatherstrip 126. The inner edge of the stile 128 land the thermal-pane are secured by a wooden member 130 which is anchored to the stile by a bolt member as will be described later. A picture window sash stop 132, quarter member 131 and a mullion casing 134 are positioned on the inner surface of the janrb 48 to finish the installation of the window. The thermal-pane is sealed to the outer surface of the stile by a glazing sealant or compound as indicated by numeral 133. As best seen in FIG. 11, the wooden member 130, about the inner periphery of the picture window, is provided a recessed portion 135 to receive the head portion (not shown) of a bolt member 137. The bolt member 137 passes through the wooden member 130 and the stile to engage a threaded abutment 139 integral with the stile. This anchors the window on all sides to the frame.

The combination storm and screen casing as described for the embodiments above may be installed with the utilization of only the screen sash 60, the storm sashes being installed at a subsequent time. When installing sealing cap 136, preferably formed from a hard vinyl, is contoured to be resiliently disposed over the upper portion of the screen sash with the inner upper edge of the cap extending inwardly towards the primary window sash. Secured in the inwardly extending edge of the cap 136 is a flap member 138, preferably formed from a soft vinyl, to form a weather seal against the rail of the adjacent primary window, yet the flap 138 is flexible enough to permit the primary window to be moved in a vertical plane.

Referring now to FIG. 10, the lower peripheral edge of the thermal-pane glass is secured by a contoured rail 137. Rail 137 provides a front Wall 13 9 having a channel 140 formed on the lower edge thereof. A vinyl sealing strip 142 is disposed in channel 140 and seals against the planar surface 7-8 of the sill 16.

An inner wall 144 of the rail 137 has a wooden member 130 secured thereto by a bolt member as previously described, to hold the window in position. The glazing sealant v14-8, is disposed about the thermal-glass within the outer portion of the rail, to seal the glass to the rail. A conventional wooden sill cover 150 and window stool 152 are secured into position adjacent the wooden member 130 to complete the installation.

The upper rail 154 of the picture window 112, as best seen in FIG. 11, is secured in position in substantially the same manner as the lower rail 137 and stile 128 just described. The upper rail 154 has a configuration identical with the lower rail 137 except it is mounted in the reverse position with a glazing sealant 155 within the rail about the peripheral edge of the thermal-pane.

An exterior sash stop 156, having substantially an L- shaped configuration has an upper leg 158 secured to ,the under surface of the head jamb 18 with the outer downwardly extending leg 160 having an inwardly facing channel 162 formed on the inner surface thereof. A vinyl sealing strip 164 is received in the channel 162 and seals against the outer surface of the rail 154. As previously described, the wooden member 130 is secured to the rail 154 by the bolt member 137 to secure the thermalpane to the rail. An interior quarter piece or head stop 131 is secured in position to complete the installation.

Referring now more specifically to FIG. 12, an alternate window construction is shown illustrating double hung windows adjacent one another. The intermediate side 1711 between the two sets of double hung windows is constructed in identical manner as the intermediate side 114 between the double hung windows and the picture window of the embodiment just described. The two spaced lower abu-tments 124 of the U-shaped member 116, carrying the seals 126, is in sealing engagement with the preformed casing guides of the double hung windows on both sides of the side jamb 48 rather than one abutting against the rail 120 of the picture window 112.

Referring now to FIGS. 4 and 13, and more specifically to FIG. 13, there is illustrated in exploded relationship the components and their securement in forming the combination storm and screen sash casing of this invention.

The sill 16 has a plurality of tabs 172, formed in the surface 78 adjacent the ends thereof, in juxtaposition with the marginal end of side jamb 48. Jamb 48 has a groove 174- formed in the marginal end for receipt of the tabs and is fixedly secured in position by U-shaped nails 176 passing up through the openings formed in the surface 78 upon formation of the tabs 172.

The side member 12 is additionally secured to the sill 16 by means of a threaded element 178 extending upwardly through an aperture 180 in the surface 78 for engagement with two securing brackets 182 formed in alignment on the lowermost portion of the side wall member plastic and decorated to suit as previously mentioned, has suflicient flexibility to permit the edges thereof to be disposed in holding channels integral with the side member 12. The cover 94 completes the trim and completely hides the fastening members from external viewing. It being understood that the head 14 is secured to the side members 12 in the manner just described for the securement of the sill 16.

It is now apparent to those skilled in the art that the combination storm and screen sash casing of this invention provides not only the desirable thermal-barrier but complete adaptability for various window constructions for new buildings. Further, the geometrical relationship and the preformed configuration of the components making up the casing permits assembly of the entire casing with a minimum of tools and time and the unique arrangement permits the use of a snap-in cover which completely eliminates the sight of the fasteners and gives greater latitude to the designer in applying the finishing trim.

The universal adaptability of the components permits not only mounting on virtually any type of window construction, but sulficient versatility to permit extension of the sill subsequent to installation upon change of the exterior finishing material.

The casing permits the storm and screen sashes to be easily inserted and removed entirely from within the building. The casing utilizes only two tracks for both storm sash and screen sash, yet permits self storing of the movable lower storm sash if desired during seasonal changes.

The foregoing specification and description of specific embodiments are only illustrative of my invention; the scope of which is set forth in the following claims.

What is claimed is:

1. In combination with a building wall having an opening for a primary window, a storm window and screen sash casing comprising:

a head member having a hook element thereon,

a sill member,

a pair of side jamb members of identical cross section securing the head and sill in spaced apart relationship and defining two pairs of contiguous channels including facing inner guideways and outer guideways in alignment with said hook element,

an upper sash having an upper edge overlapping said hook element and hook means engaging said hook element locked in fixed weight supported relationship against relative vertical sliding along the inner top portion of the head member for movement of the lower portion of the upper sash outwardly into said outer guideways to occupy the upper portion thereof,

a lower storm sash vertically slidable in the inner facing guideways, and

-a screen sash supported in said outer guideways on said sill in edge to edge sealing contact with the lower edge of said upper sash, said lower storm sash resting on said sill and overlapping the upper sash and the screen sash with direct contact in sealing relation therewith to releasably retain them in place and provide a thermal barrier.

2. In combination with a building wall having an opening for a rectangular window unit, an exterior storm window and screen sash casing comprising:

a head member,

a still member,

a pair of jamb members of identical cross section securing the head and sill in spaced apart relationship and defining two contiguous vertical guideways ofi'set laterally with respect to each other to form inner and outer guideways with the inner guideways spaced a distance from each other greater than the distance between the outer guideways,

a securing flange formed about a peripheral edge of said head, still and side jamb members and extending 9 outwardly in the plane of the building wall for securing said members Within the opening,

upper and lower storm sashes disposed in separate ones of said guideways,

a screen sash disposed in the same tguideway as the upper storm sash in edge abutting and sealing relationship therewith and both having a marginal thickness at their side edges equal to the width of the outer guideway, and

means for releasably retaining the lower storm sash in sliding face to face contact and sealing relationship with said screen and upper storm sash in overlapping relation with said upper storm sash at all times and with said side jamb, head and sill members to provide a thermal barrier.

3. In combination with a permanent window frame defining an opening in a building wall, a storm casing adapted to be secured Within the opening comprising:

a pair of side jamb members of identical cross section with means for securing them to the permanent window frame,

upper and lower storm sashes,

a head member having a vertically directed retaining channel for-med across its inner surface providing a supporting lower edge for the upper sash,

a sill member, said head member and sill member being fixedly secured to the side iambs, and

said side jamb members providing pairs of parallel opposing guideways the length thereof,

said upper storm sash including means at the upper edge intereng-aging said retaining channel in fixed weight supported relationship against upward and downward movement and against inward displacement for securing the upper edge of the sash in sealed relationship with the lower edge movable outwardly into sealing relationship with the outer one of said guideways,

said lower storm sash being retained in slidable sealing relationship with the other one of said guideways and in slidably sealing contact with the frame of said upper storm sash to form a thermal barrier in overlapping relationship at the lower end thereof to retain said upper sash in the outer guideway.

4. In combination with the permanent window frame in a building wall, a storm and screen sash casing adapted to be secured to the permanent window frame comprising:

a pair of side jamb members of identical cross section storm sashes, means on the upper edge of the upper a screen sash retained in sealing relationship within one of said guideways coplanar with one of said with means for securing them to the permanent window frame,

a head member,

a sill member, said head member and sill member being fixedly secured to the side jamb members and the permanent window frame, said side jam-b members providing parallel and opposing pairs of inner and outer guideways the length thereof,

a retaining channel formed across the inner surface of said head member having a horizontally offset weight supporting edge within the projection of the outer guide channel,

two storm sashes disposed separately in said guide channels, and one of said coplanar sash engaging said retaining channel in vertically fixed interlocking relationship therewith and secured in sealing relationship with the outer one of said guideways,

the other of said storm sashes being slidingly retained in said inner guideway in overlapping relationship with the frames of said one storm sash and said screen sash to directly hold them releasabrly in their guideway and form a thermal barrier when opposite said screen sash.

5. In combination with a frame in a building wall, a

i0 storm window casing adapted to be secured to the frame and having removable sashes supported in the casing whereby the sash in the outer guideways are individually removable from within the inside of the building wall directly past the inner guideways comprising:

a frame defining an opening including a head member, sill member and a pair of side vertical jamb members,

said jamb members having a contoured configuration providing two pairs of opposing sash guideways, the bottom of the outer one of which is offset with respect to the inner guideway and terminates marginally at the outer edge of the inner guideway,

a pair of storm window sashes retained in sealing relationship in separate guideways and slidable in direct sealing contact with each other,

a sealing member disposed in said j-amb members along the inward face of the outer guideway engaging the outer face of the sashes in the outer guideways,

securing means to attach the frame to the building wall to provide a thermal barrier, and

cover means interconnecting said outer guideway and said securing means in sealed relationship for thermal shielding of the remote surfaces of said jamb members from the weather.

6. In combination with a window opening in a building wall, a storm window casing adapted to be secured within the opening and having sashes comprising:

a frame defining an opening and including a head member, sill member and a pair of side jamb members,

said jam'b members having contoured configurations defining contiguous outer and inner guideways providing two pairs of opposing sash guideways in the side walls thereof, said guideways having facing bottom portions each bordered on the outside by an inwardly facing wall with the bottom portion of the outer guideway terminating at the top of the inwardly facing wall of the inner guideway to clear sash in the outer guideway past the inner guideway for their individual removal from within the inside of the building,

a pair of sashes retained in sealed relative sliding contacting relationship in different ones of said guideways,

a sealing member dispose-d in said inwardly facing wall of said outer guideway engaging the outer face of one of said window sashes, and

securing means to attach the frame to the building wall including,

a cover engaging said jamb members outside of said sealing member and within the periphery of said frame.

7. In combination with a frame in a building wall, a storm window and screen sash casing adapted to be secured to the frame and comprising:

a casing frame defining an opening including a head member, sill member and a pair of side vertical jamb members, said jamb members having a contoured configuration being offset outwardly away from the sash opening providing two pairs of opposln'g sash guide channels in the side walls thereof with the inner guideways spaced a distance from each other greater than the distance between the outer guideways,

a retaining channel formed across the inner surface of said head member including a depending weight supporting element,

sealing means inside the outer wall of the outer guide channel,

an upper and lower storm sash and screen sash retained in sealing relationship within said guide channels with the sashes in the outer guide channel individually removable from within the inside of the window past the inner guide channel, said upper sash releasably engaging said weight supporting element in weight supported relationship for fixedly securing said upper sash against relative vertical movement and in sealing relationship against said sealing means in said outer guide channel, said screen sash engaging said sealing means and upper storm sash in sealing relationship, said lower storm sash being slidably retained in the other one of said guide channels in sliding sealed relationship with the frames of said screen and upper storm sash,

a sealing member disposed in said side vertical jamb members engaging the frame in the building wall,

a peripheral flange about the sash casing,

securing means for attaching the sash casing to the building wall,

a holding Web on said peripheral flange adjacent the vertical jamb members, and

a snap-in trim member resiliently retained in sealing relationship between the outer edges of said vertical jamb members and said web.

8. In combination with a Window frame in a building wall, a storm window and screen sash casing adapted to be secured to the frame comprising:

a casing frame defining an opening including a head member, sill member and a pair of side vertical jamb members,

said jamb members having contoured configurations defining contiguous outer and inner guideways providing two pairs of opposing sash guideways in the 12 a snap-in trim member resiliently retained in sealing relations-hip between the outer edges of said vertical jamb members and said web for thermally sealing the remote faces of said jamb members from the weather. 10. In combination with a building wall having an opening for a primary window, a storm window and screen sash casing comprising:

a head member having an inwardly disposed hook edge depending from its outer side,

a sill member,

a pair of side jamb members of identical cross-section securing the head and sill in spaced apart relationship and defining two contiguous channels including spaced coplanar inner channels and outer channels, said outer channels being in alignment with said hook edge and opening directly into the inner channels,

an upper sash having hook means engaging said hook edge against relative lateral and vertical movement in weight supported relationship along the inner top edge for supporting the sash for movement of the lower portion thereof outwardly past the inner channels into said outer channels to occupy the upper portion thereof,

a screen sash supported in said outer channel on said sill in edge to edge sealing contact with the lower edge of said upper sash, a lower storm sash ver tically slidabile in the inner channels slidably engaging in direct marginal contact said storm and screen sashes for releasably retaining said upper and screen sashes in the outer channels in marginal contacting sealing relationship each With the other two to provide a thermal barrier.

side walls thereof, said guideways having facing bottom portions each bordered on the outside by an inwardly facing wall with the bottom portion of the outer guideway terminating at the top of the inwardly facing wall of the inner guideway,

sealing means disposed on the inwardly facing wall '35 References Cited by the Examiner of the outer guideway, UNITED STATES PATENTS a retaining channel formed across the inner surface 1674 439 6/1928 Km 9 75 of a head, member including an upwardly 1 870 335 8/1932 Lieb i row ld0-182 X :g :g g gfi ;g$ Portwn deposed pfoxlmate 2,089,380 8/1937 Kammerer 2064 r l an upper storm sash in said outer guid chann l regggggig 513 5 fiififi 13133 leasably engaging saidrmarginal edge in in erl 2611156 9/1952 Toth n 20 55 ing sealed relationship therewith against rela ive 2675071 5 1 0 90 vertical movement and movable outwardly at the 2687194 8/1954 n p y 1g9 75 bottom past the inner guideway d i t g g 734 02 2 195 Z I 189 75 ment with said sealing means in sealing relationship, 2762474 9/1956 S tlvgm W 2 21 screen sash received in said outer guideways be low 2 7 3 099 4/1957 2 ser 139 75 said u-ppensaslr with i s upper edg bu ing i 7/1957 s z u u gs p wwh the lower edge Of the upper 2, 12,836 11/1957 Zitorner 20 a lower storm sash slidably mounted in guided re- 2 2 n 153 13 lation in the inner one of said guideways and slid bly 1, 6/1960 w hlf ld u 0 55 engaging said upper storm sash and screen s ash in 5/ Maciunas 75 directly contacting sealed relationship therewith. 0 19 1 Stevenson 139 75 9. The combination called for in claim 8 including: 5 3/1962, Sconzo 20 55 a sea-ling member disposed on said side vertical jamb 3:O8()621 3/1963 gflfi n 20:55 gg hg engaging the WmdOW frame 111 the 3,079,652 3/1963 Wahlfeld 20--64 .a peripheral flange about the sash casing, 5 23;? al a 52 securing means for attaching the peripheral flange to 3,148,754 1 Nardum 1g the building wall,

a holding web on said peripheral flange outside of said window frame and adjacent the vertical jamb members, and

HARRISON R. MOSELEY, Primary Examiner.

D. L. TAYLOR, Assistant Examiner. 

1. IN COMBINATION WITH A BUILDING WALL HAVING AN OPENING FOR A PRIMARY WINDOW, A STORM WINDOW AND SCREEN SASH CASING COMPRISING: A HEAD MEMBER HAVING A HOOK ELEMENT THEREON, A SILL MEMBER, A PAIR OF SIDE JAMB MEMBERS OF IDENTICAL CROSS SECTION SECURING THE HEAD AND SILL IN SPACED APART RELATIONSHIP AND DEFINING TWO PAIRS OF CONTIGUOUS CHANNELS INCLUDING FACING INNER GUIDEWAYS AND OUTER GUIDEWAYS IN ALIGNMENT WITH SAID HOOK ELEMENT, AN UPPER SASH HAVING AN UPPER EDGE OVERLAPPING SAID HOOK ELEMENT AND HOOK MEANS ENGAGING SAID HOOK ELEMENT LOCKED IN FIXED WEIGHT SUPPORTED RELATIONSHIP AGAINST RELATIVE VERTICAL SLIDING ALONG THE INNER TOP PORTION OF THE HEAD MEMBER FOR MOVEMENT OF THE LOWER PORTION OF THE UPPER SASH OUTWARDLY INTO SAID OUTER GUIDEWAYS TO OCCUPY THE UPPER PORTION THEREOF, A LOWER STORM SASH VERTICALLY SLIDABLE IN THE INNER FACING GUIDEWAYS, AND A SCREEN SASH SUPPORTED IN SAID OUTER GUIDEWAYS ON SAID SILL IN EDGE TO EDGE SEALING CONTACT WITH THE LOWER EDGE OF SAID UPPER SASH, SAID LOWER STORM SASH RESTING ON SAID SILL AND OVERLAPPING THE UPPER SASH AND THE SCREEN SASH WITH DIRECT CONTACT IN SEALING RELATION THEREWITH TO RELEASABLY RETAIN THEM IN PLACE AND PROVIDE A THERMAL BARRIER. 